Mystic Journey won the inaugural All-Star Mile at Flemington in March. Picture: AAPSource:AAP

— An increase in field size to 15 runners, up from 14 this year, with 10 runners voted in by the public and up to five wildcard entrants.

— The introduction of two “win and you’re in races” – the Futurity and Blamey Stakes.

— A redistribution of prizemoney for horses finishing outside the top five, with the last five home in 2020 receiving $50,000, down from $90,000 this year.

— An increase in the minimum handicap rating from 70 to 80 for horses aged four and older. — Three-year-olds will require a rating of 70.

— The introduction of a minimum performance criteria, requiring horses at the close of nominations to have either run in the first three in a black type race or have won $20,000 or more by finishing in the top three of a flat race from February 1, 2019.

Racing Victoria’s Greg Carpenter said it was possible Mystic Journey could attempt to defend her crown on March 14 next year.

He also hinted the race could grow even further internationally as it attempts to build remarkable race-day metrics. Group 1 status was possible, if not a priority.